pouët.net

http://www.rabbitholes.com/index.html

3D Motion Holograms. I'd like to get me one of those but I'm not stinking rich just yet.

Still, I'd like to see what sceners would create for those (other than the obvious creations such as the pig or a 3D goatse).

Here's another one:

Rendering each frame 1280 times is probably not doable for most demos though :)

gloom: i think if you wouldn't use a traditional rendering approach it could be doable (ok perhaps not with a depth of 1280 ;) ).

I get the impression it's not actually 'animating', but rather it's a still hologram with 1280 viewable angles, and a separate frame for each angle. So you could make a 1280 frame animation, that animates when you walk past it...

Perhaps that's wrong, but it's how I've seen this stuff done before, and it's how it looks on the video. I'd love to see a demo style hologram like this though :)

Same impression here.

Rob is jarig should work pretty well on this thing :D

Oh and I wonder how screwed up would people get if someone sneaks in the pig, goatse or the pic of Adok in his mum's living room in 1 of the 1280 frames. Would people go rampage ?

hm, ok, i think i got it wrong. i thought that there are 1280 layers :( that would indeed be difficult to render in realtime. isn't it irritating when one eye sees another frame of the "animation"?

p01: reminds me of fight club :)

Src, that's why the animations are rather slow, yes.

Still wondering... a few of those images actually look rendered; has holography progressed to a point where you can actually render holograms with a computer? Haven't followed it for like 10 years now...

That is how I understood it as well, so in order to have actual animation on there, you would need to render each frame 1280 times. That's 76800 frames per second instead of 60, if you want to have pure fluid motion.. that is, if the system even supports having the frames changed in realtime, which I doubt it has.

I guess it could be done (on a theoretic level) if the motion in the "demo" was simple enough and a very beefy computer was rendering it out.

there are animated ones,
you need to walk past it to see the animation.
so, instead of a diffrent angle, its the next frame (from a different angle)

if you walk in the wrong direction, it's played backwards, and if you halt, the film pauses

Yes, that has already been established. The point is that that is not animation in the sense that the frames move if you stand completely still.

this kind of hologram has to be printed, so to animate it you'd have to pre-render and use some kind of giant projector style film roll + shutter set up. I can see it being very big, loud, expensive and headache inducing...

I'm sure i saw some years back though that there was a different system that CAN do animation, they even talked about doing realtime on it but said that the kind of computer needed to animate even something basic would have to be huge. Maybe with modern gpu power?

How did that massive hologram of Shane Warne work?

You mean his stuffed twin?

I wasn't talking about using this for showing real-time demos because you wouldn't be moving while the demo played, I was just showing this because I think it is a nice way to display 3D digital art.

Imagine a demo museum with these things "showing off" the key moments of the demo they were meant to represent. I'd like to see that.

OTOH, I dunno if this is doable on some sort of LCD screen on steroids. If it is then it would be cool to play a movie/animation/demo and "scroll" the frames : only one frame is rendered, at the utmost CCW angle frame and the frames are scrolled CW.

That would give instant slit scan thingy bingy.

Now we only need a rotating enormous cylinder of holograms, and we are back to 1880's motion cinema projector, but in 3D :-)

p01. I was at a technology fair in copenhagen a couple of years ago. And I saw a screen that could display fairly convincing 3D images. But it was still a prototype. THe kind of "3d" you used to need glasses to see, but now without the glasses. What impressed me the most was the it didn't seem to matter from what angle you viewed the picture, as long as you could see the whole picture the depth effect was clearly visible.

I wan't to remember what the company was called, and then I wan't one and a corridor shooter!

Awesome stuff! I'd like one of those hanging on my wall, but I'm guessing they are rather expensive...

I liked a lot the animation called "The Hide".

For doing this in realtime, I guess one can render only a subset of the 1280 view angles, and interpolate the rest by reprojection, quite like in the "render cache" and similar approaches. I assume that today the 1280 frames cover the complete hemisphere of possible viewer positions in front of the hologram, that gives more or less one frame for every 5 degrees of movement. Probably too much. Also, if only one viewer at a time is watching the thing, the device could detect where (s)he is approximately and only render a subset of the 1280 images (ie, those around her/his position).

Whatever, very cool.

finally 3D artists can enter museums ;)

Very very nice and practical/effective, even if not cheap for producing single prints...
A demo this way? It would be really cool.
I think that the only feasible technique would be head tracking + stereoscopy.

those 3D artists sure do like apocalyptic images of death & destruction. Bit too much death fetishism for my taste.

but the technology is cool